1 : <?php
2 : /*--------------------------------------------------------------------------+
3 : This file is part of eStudy.
4 : courses/classes/class.CourseUtil.php
5 : - Modulgruppe: Veranstaltung
6 : - Beschreibung: Sammlung statischer Methoden.
7 : - Version: 0.2, 03/10/05
8 : - Autor(en): Timo Fuchs <timo.fuchs@mni.fh-giessen.de>
9 : +---------------------------------------------------------------------------+
10 : This program is free software; you can redistribute it and/or
11 : modify it under the terms of the GNU General Public License
12 : as published by the Free Software Foundation; either version 2
13 : of the License, or any later version.
14 : +---------------------------------------------------------------------------+
15 : This program is distributed in the hope that it will be useful,
16 : but WITHOUT ANY WARRANTY; without even the implied warranty of
17 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 : GNU General Public License for more details.
19 : You should have received a copy of the GNU General Public License
20 : along with this program; if not, write to the Free Software
21 : Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 : +--------------------------------------------------------------------------*/
23 :
24 : /**
25 : * In dieser Datei wird die Klasse CourseUtil implementiert.
26 : * @package eStudy.Courses
27 : * @version 0.2, 03/10/05
28 : * @author Timo Fuchs <timo.fuchs@mni.fh-giessen.de>
29 : */
30 :
31 1 : global $settings;
32 1 : define("START_MONTH_SS", $settings["start_month_ss"]);
33 1 : define("START_MONTH_WS", $settings["start_month_ws"]);
34 :
35 : /** Enthaelt Hilfsfunktion zur Veranstaltungslogistik.
36 : * Alle Methoden sind ohne ein Objekt zu erzeugen benutzbar.
37 : *
38 : * @package eStudy.Courses
39 : * @author Timo Fuchs <timo.fuchs@mni.fh-giessen.de>
40 : * @version 0.2, 03/10/05
41 : */
42 1 : class CourseUtil {
43 :
44 : /**
45 : * Gibt das aktuelle Semester zurück.
46 : *
47 : * @access public
48 : * @return string Semester in DB-Form (z.B. 04SS)
49 : */
50 : function getCurrentSemester() {
51 : // derzeitigen Semester-Typ ermitteln
52 0 : $currentMonth = (int) strftime("%m"); // derzeitiger Monat
53 0 : if($currentMonth < START_MONTH_SS || $currentMonth >= START_MONTH_WS) {
54 0 : $currentType = "WS";
55 0 : } else {
56 0 : $currentType = "SS";
57 : }
58 0 : $year = (int)strftime("%y");
59 0 : if($currentMonth < START_MONTH_SS)
60 0 : $year = ($year - 1 + 100) % 100; // wegen Jahrhundertgrenze
61 0 : if ($year < 10) $year = "0".$year;
62 0 : return $year.$currentType;
63 : }
64 :
65 : /**
66 : * Gibt eine Listbox zum auswaehlen eines Semesters per echo aus.
67 : *
68 : * @access public
69 : * @static
70 : * @param integer $yearRange Zeitspanne in Jahren,
71 : * die in der Listbox auswaehlbar sein soll.
72 : * @param string $enabledItem Semester, das ausgewaehlt sein soll
73 : * in der Form "WS 03/04" bzw. "SS04".
74 : * @return void
75 : */
76 : function createSemesterListbox($yearRange = 2, $enabledItem = "none") {
77 :
78 0 : $currentYear = (int) strftime("%y"); // derzeitiges Jahr
79 0 : $currentMonth = (int) strftime("%m"); // derzeitiger Monat
80 :
81 0 : $listbox = ""; // html-Code der Listbox
82 :
83 : // derzeitigen Semester-Typ ermitteln
84 0 : if($currentMonth < START_MONTH_SS || $currentMonth >= START_MONTH_WS) {
85 0 : $currentType = "WS";
86 0 : } else {
87 0 : $currentType = "SS";
88 : }
89 :
90 : // Anfangsjahr-und semester-Typ ermitteln
91 0 : if($enabledItem === "none") {
92 0 : $startYear = $currentYear;
93 0 : $startType = $currentType;
94 0 : } else {
95 0 : $enabledYear = (int) substr($enabledItem, 3, 2);
96 0 : $enabledType = substr($enabledItem, 0, 2);
97 0 : if($enabledYear < $currentYear) {
98 0 : $startYear = $enabledYear;
99 0 : $startType = $enabledType;
100 0 : $yearRange = $yearRange + $currentYear - $enabledYear;
101 0 : } elseif($enabledYear == $currentYear) {
102 0 : $startYear = $currentYear;
103 0 : if($enabledType === "SS" || $currentType === "SS") {
104 0 : $startType = $currentType;
105 0 : } else {
106 0 : $startType = "WS";
107 : }
108 0 : } else {
109 0 : $startYear = $currentYear;
110 0 : $startType = $currentType;
111 : }
112 :
113 : }
114 0 : if($startType === "WS") {
115 0 : $startYear--;
116 0 : }
117 :
118 : // Listbox konstruieren.
119 0 : $listbox .= "<select name='semester'>";
120 0 : $yearCount = 0; // zaehlt die bereits angezeigten Jahre
121 0 : $tempType = $startType; // temporaerer Semester-Typ
122 :
123 : // Options konstruieren.
124 0 : while($yearCount <= $yearRange) {
125 0 : $item = $tempType;
126 0 : $item .= " ";
127 0 : $item .= strftime("%y", mktime(0,0,0,1,1,$startYear+$yearCount));
128 0 : if($tempType === "WS") {
129 0 : $item .= "/";
130 0 : $item .= strftime("%y", mktime(0,0,0,1,1,$startYear+$yearCount+1));
131 0 : $yearCount++;
132 0 : $tempType = "SS";
133 0 : } else {
134 0 : $tempType = "WS";
135 : }
136 0 : $listbox .= "<option value='".$item."'";
137 0 : if($item === $enabledItem) {
138 0 : $listbox .= " selected='selected'";
139 0 : }
140 0 : $listbox .= ">".$item."</option>";
141 0 : }
142 :
143 0 : $listbox .= "</select>";
144 :
145 : // Listbox ausgeben.
146 0 : echo $listbox;
147 0 : }
148 : }
149 : ?>
|
